text: # -*- coding: utf-8 -*-
  """
  Created on Fri Oct 27 15:52:46 2017
  
  @author: cdonovan
  """
  
  # Python 3.5
  # Basic neural network using Numpy
  
  import numpy as np
  
  # activation functions
  
  def relu(arr):
      return np.maximum(arr,0)
  
  relu(arr1)